Design of a New Electromagnetic Brake for Actuator Locking Mechanism in Aerospace Vehcile

Kumar, B. V. Ravi; Sivakumar, K.; Rao, Y. S.; Karunanidhi, S.

doi:10.1109/tmag.2017.2707242

Cited by 13 publications

(5 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When the electromagnetic clutch is energized, the armature generates suction and the spring releases pressure. Or spring pressurization and electromagnetic pressure relief can transfer torque between friction plates to produce a braking effect [25], [26]. The electromagnetic clutch system in the loom is mainly composed of four basic components: central transmission plate A, brake magnet B, clutch magnet C and clutch rotor D. C and A are engaged to form an electromagnetic clutch, and B and A are engaged to form an electromagnetic brake.…”

Section: Electromagnetic Braking Principle Of Loommentioning

confidence: 99%

Research on Dynamic Control Method of Loom Spindle Braking System Based on Fuzzy Neural Network

et al. 2022

View full text Add to dashboard Cite

Aiming at the problems of slow response speed of loom electromagnetic braking system and low accuracy of parking angle after braking, resulting in driving marks and thin and dense roads of fabrics, a braking control system based on fuzzy theory and BP neural network is proposed to improve the response speed and control accuracy of the braking system. Firstly, the transmission torque in the braking process of the loom is dynamically analyzed by establishing the mathematical model of electromagnetic braking and the Ansoft electromagnetic finite element model. The causes of braking angle slip are explored, and the driving mechanism of the electromagnetic clutch control circuit based on PWM pulse is analyzed. Based on the control strategy of excitation current, by introducing the fuzzy theory and BP neural network, a fuzzy electromagnetic braking control system based on a neural network is proposed to improve the adaptive ability of the system. At the same time, the IBA-BP algorithm is used to train the neural network to avoid the generation of local optimization and improve the control accuracy of the system. The simulation and experimental results show that compared with PID control and fuzzy PID control, the neural network method based on fuzzy theory has a smaller braking slip angle, and the accuracy of parking angle after braking action is less than 10 °, which improves the control accuracy of loom electromagnetic braking system and weaving quality.

show abstract

Section: Electromagnetic Braking Principle Of Loommentioning

confidence: 99%

Research on Dynamic Control Method of Loom Spindle Braking System Based on Fuzzy Neural Network

et al. 2022

View full text Add to dashboard Cite

show abstract

“…1b, where a permanent magnet (PM) is added atop the core. As a result, a zero-power attractive force works on the mover and can, theoretically, hold closed the mover to the stator (latch) [1], [3], [8]. Again, a coil is wound around a steel core, however, contrary to CLA, in this permanent magnet-biased (PMB) actuator, the coil only operates to change the mover position, whereas in CLA, continuous consumption of electrical energy is required to latch the plunger.…”

Section: Actuator Topologiesmentioning

confidence: 99%

“…An automotive, fluid-control solenoid valve is composed of an electromagnetic reluctance actuator and a near-constant-force spring. Reluctance actuators are applied as electromagnetic brakes in aerospace applications [1], as valves that perform fast sorting tasks by means of short air-pulses in the manufacturing industry [2], as accurate fluid-control valves in petrochemical processes [3], and in the automotive industry to achieve variable valve timing in camless engines [4]. Common desires are a fast switching and low noise upon impact.…”

Section: Introductionmentioning

confidence: 99%

Soft-landing control of low-energy solenoid valve actuators

Dam

Gysen

Lomonova

et al. 2018

2018 Thirteenth International Conference on Ecological Vehicles and Renewable Energies (EVER)

View full text Add to dashboard Cite

DOI to the publisher's website. • The final author version and the galley proof are versions of the publication after peer review. • The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal. If the publication is distributed under the terms of Article 25fa of the Dutch Copyright Act, indicated by the "Taverne" license above, please follow below link for the End User Agreement:

show abstract

“…Further, the effectiveness of the proposed system is verified. In contrast to previous latching EPM brakes and valves that regulate the magnetic circuit passing through the yoke [9]- [11], we actuate the magnet itself to switch between attached and detached states for directly generating a pressing force, as an application of a compensated magnetic mechanisms [12]- [14]. This method is advantageous in that its output is not digital (on and off) when continuously regulating the distance between the magnets and unique in that it would ultimately contribute to braking in any machine and tool because its means of latching include, but are not limited to, electric current in a coil, solenoid, and motor; even mechanical force and human power can be used.…”

Section: Introductionmentioning

confidence: 98%

Permanent-Magnetically Amplified Brake Mechanism Compensated and Stroke-Shortened by a Multistage Nonlinear Spring

Shimizu

Tadakuma

Watanabe

et al. 2022

IEEE Robot. Autom. Lett.

View full text Add to dashboard Cite

Electromagnetic (EM) brakes are widely used but consume electricity continuously to maintain their activated state. In this paper, for efficient braking and idling of robots and vehicles, we proposed a concept of a brake mechanism using a permanent magnet for the amplification of the pressing force between brake pads, allowing for the brake torque to be steplessly regulated by a minimal external force. The prototype of the proposed mechanism was developed with a newly devised compensation spring-not the conventional conical coil springs-comprising two linear springs to shorten the pad-detaching stroke. For proof of concept, evaluation experiments based on the Japanese Industrial Standards were conducted. Both the maximum static and average dynamic friction torques increased to 161.0% and 192.9%, respectively, when identical pads of an EM brake were used for comparison. Power saving was also achieved when braking for longer than 0.43 s; the torque-energy efficiency increased by 8.7 when measured for 1.0 s, successfully revealing the effectiveness of the proposed principle. Further, based on the force-displacement characteristic of the compensated magnet, the theoretical response time was numerically analyzed as 13.6 ms-comparable to the contrasted EM brake-validating the actual behavior of 14.0 ms.

show abstract

Design of a New Electromagnetic Brake for Actuator Locking Mechanism in Aerospace Vehcile

Cited by 13 publications

References 8 publications

Research on Dynamic Control Method of Loom Spindle Braking System Based on Fuzzy Neural Network

Research on Dynamic Control Method of Loom Spindle Braking System Based on Fuzzy Neural Network

Soft-landing control of low-energy solenoid valve actuators

Permanent-Magnetically Amplified Brake Mechanism Compensated and Stroke-Shortened by a Multistage Nonlinear Spring

Contact Info

Product

Resources

About